CN110425195B - Loading valve block with oil supplementing function for performance test of ultrahigh pressure overflow valve and operation method of loading valve block - Google Patents
Loading valve block with oil supplementing function for performance test of ultrahigh pressure overflow valve and operation method of loading valve block Download PDFInfo
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- CN110425195B CN110425195B CN201910666422.5A CN201910666422A CN110425195B CN 110425195 B CN110425195 B CN 110425195B CN 201910666422 A CN201910666422 A CN 201910666422A CN 110425195 B CN110425195 B CN 110425195B
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- 230000001502 supplementing effect Effects 0.000 title claims abstract description 38
- 238000011056 performance test Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 44
- 238000002474 experimental method Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to a loading valve block with an oil supplementing function for an ultrahigh pressure overflow valve performance test and an operation method thereof, wherein the loading valve block comprises a P1 connected with a forward loading oil source, a P2 port connected with a reverse loading oil source, and A, B ports of the valve block respectively connected with high and low pressure ports of a test piece, and T1, T2, T3 and T4 ports are oil return ports. By adopting the technical scheme, the problems of poor reliability, slower efficiency and large workload in the test of the performance test loading system of the ultrahigh pressure overflow valve with the oil supplementing function are effectively solved, the production efficiency is improved, the oil supplementing function test is considered, and the ultrahigh pressure overflow valve with the oil supplementing function has universal applicability.
Description
Technical Field
The invention belongs to the technical field of hydraulic test systems, and particularly relates to a loading valve block with an oil supplementing function for an ultrahigh pressure overflow valve performance test and an operation method thereof.
Background
At present, the flow interval of the high-pressure overflow valve test bed is larger, the high-pressure requirement is stable, and the test precision requirement is very high. However, many test projects require that all working ports are subjected to three main tests of forward pressure resistance, leakage and reverse oil compensation. The high-pressure overflow valve has higher use pressure which can reach 500bar, and has higher requirements on pressure resistance and reliability of the test element. The conventional whole test process needs to replace the pipeline for many times when changing test items, consumes a great deal of manpower, and needs to solve two problems to be solved urgently. And meanwhile, the oil supplementing function test is considered.
Disclosure of Invention
The invention provides a loading valve block with an oil supplementing function for an ultrahigh pressure overflow valve performance test and an operation method thereof, which aim to solve the technical problems in the prior art, avoid the trouble of replacing a pipeline for a plurality of times, improve the control reliability and have the valve blocks with various loading modes such as forward and reverse high-flow loading, reverse low-flow oil supplementing test and the like.
The invention adopts the technical proposal for solving the technical problems in the prior art that:
the utility model provides a take oil supplementing function superhigh pressure overflow valve performance test loading valve piece, including P1 connection forward loading oil source, P2 mouth is connected reverse loading oil source, A, B of valve piece connects by test piece high low pressure mouth respectively, T1, T2, T3, T4 mouth is the oil return mouth, P1 respectively with the relief valve, first high pressure electromagnetic hydraulic control check valve, second high pressure electromagnetic hydraulic control check valve and third high pressure electromagnetic hydraulic control check valve are connected, the relief valve is connected with T1, T1 is connected with first high pressure check valve, first high pressure check valve is connected with first high pressure electromagnetic hydraulic control check valve, be equipped with high pressure sensor on the first high pressure electromagnetic hydraulic control check valve, first high pressure electromagnetic hydraulic control check valve is connected with second electromagnetic ball valve and A respectively, be equipped with second low pressure sensor on the second electromagnetic ball valve, the second high pressure electromagnetic hydraulic control check valve passes through the second high pressure check valve and is connected with low pressure flowmeter big, second high pressure electromagnetic hydraulic control check valve and low pressure overflow valve, first high pressure ball valve is connected with low pressure overflow valve and low pressure ball valve, first low pressure electromagnetic control ball valve load-carrying valve is little-carrying valve, the load-carrying valve is connected with first high pressure electromagnetic control check valve, the reverse-pressure overflow valve is loaded with first high pressure electromagnetic control ball valve, the ball valve is loaded with the low pressure electromagnetic valve.
By controlling the valve block plug-in a linkage manner, the invention can realize multiple loading modes such as forward and reverse high-flow loading, reverse low-flow oil supplementing test and the like.
The operation method of the invention is as follows:
the operation method of the ultra-high pressure overflow valve performance test loading valve block with the oil supplementing function comprises the steps of high-pressure forward loading, reverse high-flow loading or oil supplementing function test, wherein 1) the high-pressure forward loading is performed, the safety valve sets oil supply safety pressure, the test pressure of a first proportional overflow valve is set, and the back pressure of a second proportional overflow valve is controlled by setting; when the third high-pressure electromagnetic hydraulic control one-way valve is in a reset state, P1 oil return to T1 is realized. When the first high-pressure electromagnetic hydraulic control one-way valve 3 and the second high-pressure electromagnetic hydraulic control one-way valve are electrified, P1-high-pressure forward loading of the test piece A-B is realized;
2) The reverse large-flow loading is performed, the safety valve sets oil supply safety pressure, the test pressure of the first proportional overflow valve is set, and the loading safety pressure of the port B is controlled by setting the second proportional overflow valve; when the third high-pressure electromagnetic hydraulic control one-way valve is in a reset state, the return of the P1 oil to T1 is realized. When the first high-pressure electromagnetic hydraulic control one-way valve and the third high-pressure electromagnetic hydraulic control one-way valve are electrified, the reversed high-flow loading of the tested piece by the B-A is realized;
3) The oil supplementing function test is carried out, a low-pressure oil source enters from a P2 port, a reverse loading safety valve sets safety protection pressure, reverse loading controls the power supply of an electromagnetic ball valve, and a second proportional overflow valve is set to control loading safety pressure of a B port, so that P1 oil returns to T4; realizing the reverse oil supplementing function test of the tested piece by the B-A.
In the loading loop, a low-pressure large flowmeter with a large range is used for measuring when large flow is loaded in the forward and reverse directions, and a low-pressure small flowmeter is used for measuring the flow below 20L/min when the oil supplementing function is tested.
Because the use pressure of the measured piece is higher, after all experiments are completed, in order to prevent the damage of the residual pressure in the cavity to an operator, the reverse loading control electromagnetic ball valve is electrified, and the first electromagnetic ball valve can be electrified to release the pressure of the A, B cavity respectively.
The second electromagnetic ball valve is a protection switch of a second low-pressure sensor.
The invention has the advantages and positive effects that: by adopting the technical scheme, the problems of poor reliability, slower efficiency and large workload in the test of the performance test loading system of the ultrahigh pressure overflow valve with the oil supplementing function are effectively solved, the production efficiency is improved, the oil supplementing function test is considered, and the ultrahigh pressure overflow valve has universal applicability.
Drawings
Fig. 1 is a control schematic of the present invention.
In the figure: 1. the hydraulic control system comprises a safety valve, a first proportional overflow valve, a first high-pressure electromagnetic hydraulic control one-way valve, a first high-pressure one-way valve, a second high-pressure electromagnetic hydraulic control one-way valve, a second high-pressure one-way valve, a third high-pressure electromagnetic hydraulic control one-way valve, a third high-pressure one-way valve, a second proportional overflow valve, a low-pressure large flowmeter, a high-pressure sensor, a first low-pressure sensor, a reverse loading control electromagnetic ball valve, a reverse loading safety valve, a low-pressure small flowmeter, a first electromagnetic ball valve, a second electromagnetic ball valve and a second low-pressure ball valve.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
referring to figure 1 of the drawings in which,
the utility model provides a take oil supplementing function superhigh pressure overflow valve performance test loading valve piece, including P1 connection forward loading oil source, P2 mouth is connected reverse loading oil source, A, B of valve piece connects by test piece high-low pressure mouth respectively, T1, T2, T3, T4 mouth is the oil return mouth, P1 respectively with relief valve 1, first ratio overflow valve 2, second high pressure electromagnetic hydraulic control check valve 5 and third high pressure electromagnetic hydraulic control check valve 7 are connected, relief valve 1 is connected with T1, T1 is connected with first high pressure check valve, first high pressure check valve 4 is connected with first high pressure electromagnetic hydraulic control check valve 3, be equipped with high pressure sensor 11 on the first high pressure electromagnetic hydraulic control check valve 3 respectively, first high pressure electromagnetic hydraulic control check valve 3 is connected with second electromagnetic ball valve and A, be equipped with second low pressure sensor 18 on the second electromagnetic ball valve 17, second high pressure electromagnetic hydraulic control check valve 5 passes through second high pressure check valve 6 and is connected with third high pressure electromagnetic hydraulic control check valve 7, relief valve 7 is connected with first high pressure 10 and low pressure ball valve 13 and low pressure 15, the low pressure ball valve is connected with first pressure 15 and low pressure 15 ball valve 13, the low pressure 15 is connected with first ratio overflow valve 13 and low pressure 15, the low pressure ball valve is connected with the low pressure meter, the low pressure 15 is high pressure ball valve is loaded to the low pressure ball valve is connected with the low pressure ball valve, the low pressure electromagnetic valve is 13, the ball valve is loaded to the low pressure 15, the ball valve is loaded with the ball valve is a ball valve, the ball valve is loaded to the ball valve is a ball valve, the ball valve is a ball, the ball valve is a ball valve has a high-valve has a low pressure electromagnetic valve, the ball valve has a high pressure electromagnetic valve has a low, and has a high pressure and has a high and has an oil.
By controlling the valve block plug-in a linkage manner, the invention can realize multiple loading modes such as forward and reverse high-flow loading, reverse low-flow oil supplementing test and the like.
The operation method of the invention is as follows:
an operation method of a loading valve block with an oil supplementing function for an ultrahigh pressure overflow valve performance test comprises the steps of high-pressure forward loading, reverse high-flow loading or oil supplementing function test, wherein:
1) The high pressure is positively loaded, the safety valve 1 sets oil supply safety pressure, the test pressure of the first proportional relief valve 2 is set, and the back pressure of the second proportional relief valve 9 is set and controlled; when the third high-pressure electromagnetic hydraulic control one-way valve 7 is in a reset state, the return of P1 oil to T1 is realized. When the first high-pressure electromagnetic hydraulic control one-way valve 3 and the second high-pressure electromagnetic hydraulic control one-way valve 5 are electrified, P1-high-pressure forward loading of the test piece A-B is realized;
2) The reverse large-flow loading is performed, the safety valve 1 sets oil supply safety pressure, the test pressure of the first proportional relief valve 2 is set, and the loading safety pressure of the port B is controlled by setting the second proportional relief valve 9; when the third high-pressure electromagnetic hydraulic control one-way valve 7 is in a reset state, the return of P1 oil to T1 is realized. When the first high-pressure electromagnetic hydraulic control one-way valve 3 and the third high-pressure electromagnetic hydraulic control one-way valve 7 are electrified, the reverse high-flow loading of the tested piece by the B-A is realized.
3) The oil supplementing function test is carried out, a low-pressure oil source enters from a P2 port, a reverse loading safety valve 14 sets safety protection pressure, the reverse loading control electromagnetic ball valve 13 is powered on, and the loading safety pressure of a B port is controlled by setting a second proportional overflow valve 9, so that the return of P1 oil to T4 is realized; realizing the reverse oil supplementing function test of the tested piece by the B-A.
In the loading loop, in order to improve the measurement accuracy, a low-pressure large flowmeter 10 with a large measuring range is used for measuring when large flow is loaded in the forward and reverse directions, and a low-pressure small flowmeter 15 is used for measuring the flow below 20L/min when the oil supplementing function is tested.
Because the use pressure of the measured piece is higher, after all experiments are completed, in order to prevent the damage of the residual pressure in the cavity to an operator, the reverse loading control electromagnetic ball valve 13 is powered on, and the first electromagnetic ball valve 16 is powered on and can be used for respectively discharging the pressure of the A, B cavity.
The second solenoid valve 17 is a protection switch for the second low pressure sensor 18. The second electromagnetic ball valve 17 is a three-way electromagnetic ball valve.
The relief valve 1 is set to a P1 relief pressure, the test loading pressure of the first proportional relief valve 2 is set, and the back pressure of the second proportional relief valve 9 is controlled.
In the structure, the 3, 5 and 7 high-pressure hydraulic control check valves and the 4, 6 and 8 high-pressure check valves jointly control forward P1-A and reverse P1-B loading or P1-T1 pressure relief flushing.
The oil supplementing function test is carried out, a low-pressure oil source enters from a P2 port, a reverse loading safety valve 14 sets safety protection pressure, a 13 electromagnetic ball valve is powered on, and P1 oil returns to T4 by controlling the safety loading pressure of a second proportional overflow valve 9; realizing the reverse oil supplementing function test of the tested piece by the B-A.
The invention effectively solves the problems of poor reliability, large workload and low efficiency in the test of the performance test loading system of the ultrahigh pressure overflow valve with the oil supplementing function, improves the production efficiency, considers the oil supplementing function test and has universal applicability.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the invention in any way, but any simple modification, equivalent variation and modification of the above embodiments according to the technical principles of the present invention are within the scope of the technical solutions of the present invention.
Claims (4)
1. An operation method of a performance test loading valve block with an oil supplementing function and an ultra-high pressure overflow valve comprises connecting P1 with a forward loading oil source, connecting P2 with a reverse loading oil source, respectively connecting A, B of the valve block with high and low pressure ports of a test piece, respectively, using T1, T2, T3 and T4 as oil return ports, respectively connecting P1 with a safety valve, a first proportional overflow valve, a second high pressure electromagnetic hydraulic control check valve and a third high pressure electromagnetic hydraulic control check valve, respectively connecting the safety valve with T1, connecting T1 with a first high pressure check valve, connecting the first high pressure check valve with the first high pressure electromagnetic hydraulic control check valve, respectively connecting the first high pressure electromagnetic hydraulic control check valve with a second electromagnetic ball valve and A, the second electromagnetic ball valve is provided with a second low-pressure sensor, the second high-pressure electromagnetic hydraulic control one-way valve is connected with the second high-pressure one-way valve, the third high-pressure electromagnetic hydraulic control one-way valve is respectively connected with the low-pressure large flowmeter, the second proportional overflow valve and the reverse loading control electromagnetic ball valve through the third high-pressure one-way valve, the first proportional overflow valve, the second proportional overflow valve and the reverse loading safety valve share an oil return interface T3, the reverse loading safety valve is respectively connected with the reverse loading control electromagnetic ball valve and the low-pressure small flowmeter, the low-pressure small flowmeter is connected with P2, the reverse loading control electromagnetic ball valve is respectively connected with the first electromagnetic ball valve and T4, the first electromagnetic ball valve is connected with the B and the low-pressure large flowmeter, and the first electromagnetic ball valve is provided with a first low-pressure sensor;
the operation method is characterized by comprising the steps of high-pressure forward loading, reverse high-flow loading or oil supplementing function testing, wherein 1) the high-pressure forward loading is performed, the safety valve sets oil supply safety pressure, the test pressure of the first proportional overflow valve is set, and the back pressure of the second proportional overflow valve is controlled by setting; when the third high-pressure electromagnetic hydraulic control one-way valve is in a reset state, P1 oil returns to T1, and when the first high-pressure electromagnetic hydraulic control one-way valve and the second high-pressure electromagnetic hydraulic control one-way valve are electrified, P1-high-pressure forward loading of the test piece A-B is realized;
2) The reverse large-flow loading is performed, the safety valve sets oil supply safety pressure, the test pressure of the first proportional overflow valve is set, and the loading safety pressure of the port B is controlled by setting the second proportional overflow valve; when the third high-pressure electromagnetic hydraulic control check valve is in ase:Sub>A reset state, P1 oil returns to T1, and when the first high-pressure electromagnetic hydraulic control check valve and the third high-pressure electromagnetic hydraulic control check valve are electrified, the test piece is reversely loaded with large flow by B-A;
3) The oil supplementing function test is carried out, a low-pressure oil source enters from a P2 port, a reverse loading safety valve sets safety protection pressure, reverse loading controls the power supply of an electromagnetic ball valve, and a second proportional overflow valve is set to control loading safety pressure of a B port, so that P1 oil returns to T4; realizing the reverse oil supplementing function test of the tested piece by the B-A.
2. The method for operating the loading valve block with the oil supplementing function and the ultra-high pressure overflow valve performance test according to claim 1, wherein the loading loop is characterized in that a low-pressure large flowmeter with a large range is used for measuring when large flow is loaded in the forward and reverse directions, and a low-pressure small flowmeter is used for measuring the flow below 20L/min when the oil supplementing function is tested.
3. The method for operating the loading valve block with the oil supplementing function and the ultra-high pressure overflow valve performance test according to claim 1, wherein the reverse loading control electromagnetic ball valve is powered on, and the first electromagnetic ball valve is powered on to respectively discharge the pressure of the A, B cavity after all the experiments are completed so as to prevent the residual pressure in the cavity from damaging an operator.
4. The method for operating a loading valve block with oil supplementing function for performance test of ultrahigh pressure relief valve according to claim 1, wherein said second electromagnetic ball valve is a protection switch of a second low pressure sensor.
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| CN201910666422.5A CN110425195B (en) | 2019-07-23 | 2019-07-23 | Loading valve block with oil supplementing function for performance test of ultrahigh pressure overflow valve and operation method of loading valve block |
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| CN110425195B true CN110425195B (en) | 2024-03-19 |
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| CN102182723A (en) * | 2010-08-02 | 2011-09-14 | 湖南协力液压有限公司 | Delivery test platform for hydraulic cylinder |
| CN106704305A (en) * | 2017-01-16 | 2017-05-24 | 杭州德泰电液系统工程有限公司 | Test system of ultrahigh-pressure high-flow proportional throttle valve |
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